Autonomous Vehicle Data Packet Encoding for Interference-Robust Transmission
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Solution Overview
Problem
In autonomous driving systems, wireless communication between vehicles and servers faces interference, packet loss, and errors due to simultaneous data transmission in the same frequency band, leading to communication failures.
Innovation Solution
A data transmission method for intelligent driving vehicles that involves acquiring data, encoding it, generating a check digit, adding the encoded data to a packet with the check digit in the trailer, and transmitting the packet, which reduces packet errors and enhances reliability and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data are transmitted simultaneously in the same frequency band, then communication efficiency is improved, but interference increases causing packet loss and errors
Solution Approach 1:
The patent segments data transmission by assigning different frequency bands to different data packets. The communication system divides the frequency spectrum into multiple bands, and each packet is transmitted on a specific frequency band, thereby reducing interference while maintaining communication efficiency
Solution Approach 2:
The patent introduces frequency band allocation as an intermediary mechanism to manage simultaneous data transmissions. By using frequency division multiplexing, the system mediates between multiple data streams, allowing them to coexist without interference through proper frequency assignment
2Adaptability or versatility
If wireless communication is increased for autonomous driving functions, then system functionality is improved, but communication failure risk increases
Solution Approach 1:
The patent applies preliminary action by performing forward error correction encoding on data packets before transmission. This preprocessing step adds redundancy information that enables error detection and correction at the receiving end, thereby maintaining high reliability even as system functionality and communication volume increase
Solution Approach 2:
The patent implements beforehand cushioning through the use of check digits and error correction codes. These protective measures are built into the data structure in advance, creating a buffer against potential transmission errors and packet loss, thus ensuring reliable communication despite increased system complexity
Data Source
AI summary
The present disclosure provides a data transmission method and a data transmission device for an intelligent driving vehicle, and a device. The method includes: acquiring data to be transmitted; encoding the data to be transmitted to generate encoded data; generating a check digit according to the data to be transmitted; adding the encoded data to a data packet, wherein a trailer of the data packet comprises the check digit; and transmitting the data packet.